Included in the beta are not only the bug fixes that dot-X updates inevitably include, but also enhancements to Voice Control, video editing, vibration feedback, and the dialer interface.

According to reports, the 3.1 beta includes:

Added support for Voice Control over Bluetooth headsets, a function missing in 3.0.

Video editing - trimming, actually - with an added option to allow you to save an untrimmed version of the clip you're slimming down.

Pressing and holding a home-screen icon to allow for wiggling-icon rearrangement will be accompanied by vibration feedback - an odd addition that will do little more than reduce battery life, in our opinion.

Dialer-interface improvements will add the ability to paste in phone numbers and the conversion of alphanumeric phone "numbers" into actual dial-able numeric strings.

Developers also note that 3.1 adds "under-the-hood" improvements as well, including better support for OpenCL and Quartz graphics, plus a new API that will allow third-party apps to access the iPhone's video-editing interface.

Also, MMS is enabled by default in the beta - although there has been no announcement by AT&T when that functionality will be enabled for US iPhoners.

There's also no word on whether iPhone Software 3.1 will address the overheating issues reported by some iPhone 3GS users - a problem, we hasten to add, that we haven't experienced with our personal 3GS. ®